line 79 of uc_usaepay.module has customer misspelled.
'#description' => t('Always save the customre information in the USAePay <a href="http://help.usaepay.com/merchant/console/billing">customer billing database</a> for securely storing CC info for later use? You must have the customer database feature enabled in your USAePay account for this to work.'),
should be
'#description' => t('Always save the customer information in the USAePay <a href="http://help.usaepay.com/merchant/console/billing">customer billing database</a> for securely storing CC info for later use? You must have the customer database feature enabled in your USAePay account for this to work.'),